saveie

The --saveie option preserves hacks for Internet Explorer that would otherwise be unuseful for modern browsers.

Hacks

Double Hash IDs

##foo {}

Star hacks, slash nine hacks, slash zero hacks

.foo {
  *width: 100px;
  width: 100px\9;
  width: 100px\0;
}

Star HTML hacks

* html .foo {}

Underscore prefixed declarations

.foo {
  _color: red;
}